From patchwork Sat Aug 27 17:10:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Tian, Kevin" X-Patchwork-Id: 12956936 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 68F93C0502E for ; Sat, 27 Aug 2022 09:50:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9270F10EB5A; Sat, 27 Aug 2022 09:50:20 +0000 (UTC) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3147010EAC4; Sat, 27 Aug 2022 09:50:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1661593814; x=1693129814; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=FZ5hdZT6robo7+uwQVVe3h+/xlMhsTaJHT0t2T4polI=; b=KKH/t3YvYKjwe1BHc1icaopZDi9maWDfyB2vunDAPE5HDfY7h85poV8s 2OSoY+pFQunm+Gtu5PHffXcAjYB3yPHzsGr0Io55iM2WUGipwZTMb5TI0 BBstjW4xiqyk61XlM6KlInwaUUY3iDF28wO8HIRQKN8QIo6oDGFKbDqXV zteBdCgQkanle1SMm4gvOXkmVcIXLPHmFKELo1qKHHQaTPiWSr9cNLnSy WkJynEEVdpiBDCymXsBPg0az/J01so/zI0BICve+q8MGNyHgkl9CkJjLE zeG6lCuhqeombtWOv95dFssrrM1H6nn6PToT7cmm2I+tS8sTSSqpqDQeV g==; X-IronPort-AV: E=McAfee;i="6500,9779,10451"; a="281618678" X-IronPort-AV: E=Sophos;i="5.93,267,1654585200"; d="scan'208";a="281618678" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2022 02:50:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,267,1654585200"; d="scan'208";a="640353832" Received: from sqa-gate.sh.intel.com (HELO michael.clx.dev.tsp.org) ([10.239.48.212]) by orsmga008.jf.intel.com with ESMTP; 27 Aug 2022 02:50:04 -0700 From: Kevin Tian To: Zhenyu Wang , Zhi Wang , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter , Eric Farman , Matthew Rosato , Halil Pasic , Vineeth Vijayan , Peter Oberparleiter , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Tony Krowiak , Jason Herne , Harald Freudenberger , Diana Craciun , Alex Williamson , Cornelia Huck , Longfang Liu , Shameer Kolothum , Jason Gunthorpe , Yishai Hadas , Kevin Tian , Eric Auger , Kirti Wankhede , Leon Romanovsky , Abhishek Sahu , intel-gvt-dev@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, kvm@vger.kernel.org Subject: [PATCH 03/15] vfio/mlx5: Use the new device life cycle helpers Date: Sun, 28 Aug 2022 01:10:25 +0800 Message-Id: <20220827171037.30297-4-kevin.tian@intel.com> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20220827171037.30297-1-kevin.tian@intel.com> References: <20220827171037.30297-1-kevin.tian@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Yi Liu Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Yi Liu mlx5 has its own @init/@release for handling migration cap. Signed-off-by: Yi Liu Signed-off-by: Kevin Tian --- drivers/vfio/pci/mlx5/main.c | 49 ++++++++++++++++++++++++++---------- 1 file changed, 36 insertions(+), 13 deletions(-) diff --git a/drivers/vfio/pci/mlx5/main.c b/drivers/vfio/pci/mlx5/main.c index a9b63d15c5d3..96d1f974f0b5 100644 --- a/drivers/vfio/pci/mlx5/main.c +++ b/drivers/vfio/pci/mlx5/main.c @@ -579,8 +579,35 @@ static const struct vfio_migration_ops mlx5vf_pci_mig_ops = { .migration_get_state = mlx5vf_pci_get_device_state, }; +static int mlx5vf_pci_init_dev(struct vfio_device *core_vdev) +{ + struct mlx5vf_pci_core_device *mvdev = container_of( + core_vdev, struct mlx5vf_pci_core_device, core_device.vdev); + int ret; + + ret = vfio_pci_core_init_dev(core_vdev); + if (ret) + return ret; + + mlx5vf_cmd_set_migratable(mvdev, &mlx5vf_pci_mig_ops); + + return 0; + +} + +static void mlx5vf_pci_release_dev(struct vfio_device *core_vdev) +{ + struct mlx5vf_pci_core_device *mvdev = container_of( + core_vdev, struct mlx5vf_pci_core_device, core_device.vdev); + + mlx5vf_cmd_remove_migratable(mvdev); + vfio_pci_core_release_dev(core_vdev); +} + static const struct vfio_device_ops mlx5vf_pci_ops = { .name = "mlx5-vfio-pci", + .init = mlx5vf_pci_init_dev, + .release = mlx5vf_pci_release_dev, .open_device = mlx5vf_pci_open_device, .close_device = mlx5vf_pci_close_device, .ioctl = vfio_pci_core_ioctl, @@ -598,21 +625,19 @@ static int mlx5vf_pci_probe(struct pci_dev *pdev, struct mlx5vf_pci_core_device *mvdev; int ret; - mvdev = kzalloc(sizeof(*mvdev), GFP_KERNEL); - if (!mvdev) - return -ENOMEM; - vfio_pci_core_init_device(&mvdev->core_device, pdev, &mlx5vf_pci_ops); - mlx5vf_cmd_set_migratable(mvdev, &mlx5vf_pci_mig_ops); + mvdev = vfio_alloc_device(mlx5vf_pci_core_device, core_device.vdev, + &pdev->dev, &mlx5vf_pci_ops); + if (IS_ERR(mvdev)) + return PTR_ERR(mvdev); + dev_set_drvdata(&pdev->dev, &mvdev->core_device); ret = vfio_pci_core_register_device(&mvdev->core_device); if (ret) - goto out_free; + goto out_put_vdev; return 0; -out_free: - mlx5vf_cmd_remove_migratable(mvdev); - vfio_pci_core_uninit_device(&mvdev->core_device); - kfree(mvdev); +out_put_vdev: + vfio_put_device(&mvdev->core_device.vdev); return ret; } @@ -621,9 +646,7 @@ static void mlx5vf_pci_remove(struct pci_dev *pdev) struct mlx5vf_pci_core_device *mvdev = mlx5vf_drvdata(pdev); vfio_pci_core_unregister_device(&mvdev->core_device); - mlx5vf_cmd_remove_migratable(mvdev); - vfio_pci_core_uninit_device(&mvdev->core_device); - kfree(mvdev); + vfio_put_device(&mvdev->core_device.vdev); } static const struct pci_device_id mlx5vf_pci_table[] = {